Load balancing for distribuited databases access using a random heuristic algorithm

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6 Prospect. Vol. 12, No. 1, Enero - Junio de 2014, págs above is preferred to reorder data Ascending independent tester, simply observing the behavior of the system which is more suitable for analysis. Figure 5. Time series of even distribution, RanHeuristic, 500 requests, 3 business logical Figura 5. Series de tiempos de Even Distribution; Ran- Heurist, 500 Request, 3 lógicas del negocio C requests, 5 logics. Below are a series of graphs representing the tests conducted in the experiment. Figure 6. Time series representations of Even Distribution; RanHeurist Figura 6. Series de Representativas de series de tiempos de Even Distribution; RanHeurist A.300 requests, 3 logics D. 800 requests, 5 logics Analyzing visually the resulting curves is noted that RanHeuristic algorithm in most of graphs obtained has an improved performance over the entire test; however have asymptotic behavior at the end of each test release, with a rising slope steeper than that of Even Distribution. This asymptotic behavior is responsible for a significant deterioration in the average response time of the Ran- Heuristic algorithm. It also shows that at the beginning of a test or a request with few RanHeuristic algorithm behaves much like the Even Distribution, the latter being in these conditions and as noted in the graphs, a slightly better. Below is a Table 2 which summarizes all tests in the experiment, observing in the last column the average response times. This table shows that in the twelve runs the Ran- Heurist algorithm releases 7 lower averages than the Even Distribution. Additionally raised a hypothesis test where the Even Distribution algorithm is better than RanHeurist, to which it was found that for all the statistical tests turned out to be less than the P-value (5%), so that for all cases, the initial hypothesis is rejected, finding that statistically RanHeurist algorithm gives better response times. Finally it is noteworthy that we observed the RanHeurist algorithm were remote host of business logic that process more requests over the rest. B:800 requests, 4 logics 51

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